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June 2016 Bulletin

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TOWNSVILLE ORCHID SOCIETY INC. June 2016 Bulletin st Full contact details are on our Annual Membership Fees are due 1 September each year websitehttp://townsvilleorchidsociety.org.au Family $20.00 Pensioner Family $10.00 Postal Address: Hall Location: Single $15.00 Pensioner Single/Junior $7.50 PO Box 836 D.C. Joe Kirwan Park Country Family: $10.00 AITKENVALE QLD 4814 Charles Street, KIRWAN Details for paying membership fees: BSB:- 064823 Patron: Phyllis Merritt Account Number:- 0009 0973 President: Ted Boon Ph. 07 4775 2529 Name of Account: Townsville Orchid Society Inc. Email: [email protected] Commonwealth Bank, Aitkenvale Secretary: Jean Nicholson Ph. 07 4773 4208 Email: [email protected] Are you currently un-financial? To remain a member of the Acting Treasurer: Terry Ruxton Townsville Orchid Society Inc. and to continue to receive Bulletin Editor: Allan Anderson Mobile 0404 097 630 the TOS Bulletin you need to pay your annual membership Email: [email protected] Walter Martin 18 June Frank Ostrowski 2 July Donna Marnock 21 June Alan Dean 7 July Bernice Leeson 24 June Irwin Feldt 7 July Allan Hughes 25 June Beryl Philippi 7 July Terry Ruxton 26 June Alan Sheret 10 July Betty Sheret 28 June Janeen Ostrowski 12 July Neita Coulson 2 July Jan Allen 24 July Frank Ostrowski 2 July Alis Siarni 25 July Judges for June VETERAN C TRUSCOTT A KNOWLES P LUCKE OPEN/NOVICE/SPECIES E BOON D BENSON M BLOOM REGISTRARS CHOICE Species - Dendrobium macrophyllum - W & J Hybrid - Oncidium Sweet Sugar ‘Angel’ Nicholson, 80 Points F & D Marnock, 82 Points Novice – Cattleya Rosella Cherry Ripe Specimen -. Brasavola nodosa R Whiting, 79 Points W & C Sewell GENERAL MEETING HELD SUNDAY 21 MAY 2016 Meeting Opened: T Boon opened the meeting at 1.07pm. Minutes Of Previous Meeting: Moved W Carlisle, Seconded A Zierk; Carried. Treasurer’s Report: T Ruxton read out the Treasurer’s report. General Business: Resignation: J Nicholson resigned as Secretary TOS. Ladies Night at Bunnings: Will take place on 26 May from 6 to 9pm. Field Day at Charters Towers: Will take place in October this year. TQOC Conference and TOS 70th Birthday: Will coincide in 2017. Literary Competition on Orchids and Townsville: T Boon will take details to Committee Meeting. Christmas in July: A list will be sent around for Christmas in July to be held on Sunday 24 July for lunch. Bark and Charcoal: A pallet of bark and charcoal will be ordered. Registrar’s Choice: Hybrid - Oncidium Sweet Sugar ‘Angel’ - F & D Marnock, 82 Points; Novice – Cattleya Rosella Cherry Ripe –R Whiting, 79 Points; Species - Dendrobium macrophyllum - W & J Nicholson, 80 Points; Specimen -. Brassavola nodosa - W & C Sewell P Lucke: gave a talk on what is happening this month T Boon: gave a talk on the plants at the meeting. Meeting was handed over to W Sewell for the Novice Meeting. Meeting Closed: 1.20pm FIELD DAY 9TH. OCTOBER..... This event is only a few months away, that won't take long to go and it will suddenly be on us. We will be looking for bush houses to visit. If you decide to open your bush house so visitors can see how you grow your plants, now is the time to start and get your b/house into shape, clear leaves and rubbish away and generally tidy things up. If you would like to open your place, please advise and we will list your name. Depending on the situation I am considering opening my place for the 1st time in 30 odd years... anyone else like to join me? Let us know. Presidents Report Perhaps I should not be attempting this note tonight, some lousy mongrel has taken my dog from out the front of my place, have done all the usual things, walked the street (he never wanders), contacted the vets etc.... This time last week things were frantic for Charles Lee and his Ayr Society planners as they counted down to the 51st TQOC Inc Conference and Show, starting Friday night with a welcome to registrants. Setup of plants began around 9.30am Friday and continued all day, once the computers were up and running, plants were able to be registered and numbers given to all plants (except for foliage). Plant registration continued Saturday morning till 8 am when the Judging commenced. As there was a glitch with the computers I am not sure who won what, I believe Charlie Truscott won Grand Champion with a very large well grown and flowered Spathulata Dendrobium, the Reserve went to a B. nodosa cross Bc Yellow Bird, - magnificent! I stand corrected if this is wrong. This show had the most Cattleyas I have seen at a TQOC Conference for a long time; some really nice specimens in some outstanding colours. The Foliage was also well represented with Champion going to Jenny Jackson of Ingham. Champion fern went to Val Mitchell of Bowen. The show appeared to be lacking for blooms, however the turnout was quite remarkable. I know a number of club members attended and availed themselves of the vast array of sale plants, those who did attend I am sure were suitably impressed. Congratulation to Charles, Sharron and Vi along with their myriad of assistants for a job well done. That now leads me into our forthcoming celebrations in 2017. Our society was formed in May 1947 and as a way of celebrating our 70th Anniversary, we plan to stage the 52nd TQOC Inc Conference and Show. Planning has commenced, the venue for this affair will be the Tony Ireland Basketball stadium. It is hoped we will be able to offer reasonable registration fees and reasonably priced sales tables. To date I have already secured a donation for the Conference show, a request for a sales table and a possible international lecturer. Invitations and early advice have also gone out. Members have not been left out, as will become evident in the months or weeks ahead. We will need a great deal of assistance, please do not leave it to the willing few, but step up and offer to help. It will be appreciated. Those who attended the recent Bowen field day had an enjoyable time, our bus left very early and arrived around 8-8.15 for morning tea and the usual raffles - from there to the various bush houses throughout the day, which all ended with afternoon tea and a massive raffle. The bus arrived back home just after 7pm. An enjoyable day- and plenty of plants filled the bus. Nikki, I must apologise to you for failing to welcome to you into our club at last meeting, it was an oversight and I do apologise. President Ted CHRISTMAS IN JULY MEETING Members please note. We need to know at our next meeting how many of you will be attending this event please? The menu is along the same lines as we have had before... pork, chicken, and fish for mains Sweets - assorted apple crumble, petite pavlovas and sticky date... plus fruit tray tea and coffee Novice New Growers Report:- The monthly meeting of the Novice/New Growers was held at the Townsville Orchid Society Inc. Hall, Charles Street, Kirwan on the 22nd May with a good number of members and visitors in attendance. The topic for the afternoon’s meeting was on Thrips, a pest, which can cause a lot of damage to your orchid flowers and plants in your bush house and surroundings. This small insect which grows to about two millimetres in size is a very small sucking insect with small shrouded teeth which feeds on flowers and occasionally leaves, transmitting diseases from plant to plant by infecting the flower buds which may then not open and may be deformed. Also leaves may appear pitted, stippled, silvery and bleached. An invasion by these nasty creatures can become a big problem for orchid growers to remove. Good sanitation will help prevent infestation and growers need to be vigilant at all times. We have to congratulate Adrian (our first junior member for a long time) benching his first two flowering orchids last month in the novice section for a first and second placing. Our second junior member Zack joined the society last meeting so we can now look forward to some interesting competition from these two young members in the future. The Society Mid Winter Show is coming up on the 15th – 17th July so once again we will need as many flowering orchid plants as we can get for this occasion. We also need your generous help in filling positions on the roster. Don’t just leave it to the same few members all the time. Our afternoon teas are getting bigger and better so we have to congratulate all the members for the delicious cakes and sandwiches they give for all of our members to enjoy. Your donations of gifts towards the Multi Raffle Table and for supporting the sale of Raffle Tickets were also greatly appreciated. Please support our Winter Show with your flowering plants and manpower. BARK AND CHARCOAL. Members, I hope you will recall discussions on this subject. A pallet of South Australian bark has been received and will be available at the June meeting Charcoal has not been ordered, as we need to find out what members want as to size and bag numbers. If you would like charcoal and cannot make the meeting please ring me and advise your requirements There are 2 sizes we could consider - 10mm & 15mm, personally I think the 5 mm too small and 20 mm just a little big, however it is up to members as to what they want.
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  • Sugar Content in Floral and Extrafloral Exudates of Orchids: Pollination, Myrmecology and Chemotaxonomy Implication

    Sugar Content in Floral and Extrafloral Exudates of Orchids: Pollination, Myrmecology and Chemotaxonomy Implication

    SUGAR CONTENT IN FLORAL AND EXTRAFLORAL EXUDATES OF ORCHIDS: POLLINATION, MYRMECOLOGY AND CHEMOTAXONOMY IMPLICATION BY DAVID C. JEFFREY, JOSEPH ARDITTI AND HAROLD KOOPOWITZ Department of Organismic Biology, University of California, Irvine, California 92664 (Recei.ved 8 July 1969) SUMMARY Sugars present in the floral and extrafloral exudates from a number of orchid species have been analysed. All contain fructose, glucose and sucrose. Raffinose is the next most common sugar and stachyose occurs less frequently. Cellobiose, gentiobiose, lactose, maltose, melibiose, melezitose and a few large oligosaccharides may also be present. The distribution of these sugars in orchids may have some chemotaxonomic implications. There appears to be no correlation between the sugar content of exudates and orchid pollinators. This would seem to suggest that scent, form and colour are the major attractants to pollinators in orchids. Floral and extrafloral exudates in orchids may also function as attractants for ants which probably feed on them and repel grazers. INTRODUCTION Many orchids, both in their native habitat and under cultivation, secrete copious amounts of floral and extrafloral exudates or nectar (Darwin, 1904). Secretion occurs from organs of great diversity of position and structure (Darwin, 1904; Van der Pijl and Dodson, 1966; Thien, 1969). They were apparently first described as small droplets on the buds of Cattleya mendelii and called honey (Burbidge, x885). A more specific description of the exudates was given by a 'Mr. Rogers, of Sevenoakes' who informed Darwin that he had removed 'crystals of sugar of considerable size from the nectary of Aerides cornutum' (Darwin, 1904). Qualitative analyses of orchid exudates or nectars have been attempted relatively recently (Table 1).